English: Chinese Minelayer No. 50 in the early 1960s.
Japanese minelayer Kamishima was taken over to the Soviet Union as war reparations. It was later transferred to Chinese Navy in 1955 and served under the name "No. 50'. It was initially used as a frigate but was later converted to a minelayer.
The photo was probably first recorded in a book published in the 1960s. The date must be later than 1961 because the ship's hull number has been changed to 391.